Hyundai Motor Company

Kia Motors Corporation

Ulsan National Institute of Science and Technology

Hyoung Jun Cho

Jung Shik Kim

Sang Hoon Moon

Kyoung Bum Kim

Dong Yeon Han

Yeon Ho Kim

Young Jin Seo

Ki Nam Kim

Won Yong Lee

Jae Won Ha

Myung Kyu Jeong

Woong Chan Chae

Yong Sung Jang

Jae Min Yu

Yo Sub Sim

Young Jin Shin

Kun Min Park

Myung Gyu Kim

Deok Hwan Na

Kyu Jong Lee

Ki Jin Han

Young Gon Ryu

A stator for a drive motor includes: a segmented stator core including a plurality of mounting portions; a bobbin equipped on each mounting portion of the plurality of the mounting portions and having a coil wound thereon; a first casing and a second casing coupled to the bobbin, respectively, at opposite sides of the bobbin with respect to the segmented stator core, and configured to enclose the coil; a passage formed in one of the first casing or the second casing, and configured to allow fluid communication with the inside of the first casing and the second casing; and a terminal portion integrally formed in a remaining one of the first casing or the second casing and configured to allow connection of the coil.

Stator for drive motor

A method of extracting impedance parameters of a three-phase motor utilizes a five-terminal network including first to third winding wires and opposite shaft ends. The method includes connecting two terminals, selected from among the winding wires and the shaft ends, to input and output terminals in order to measure voltage and current of the terminals and to extract input impedance parameters of the five-terminal network, extracting conversion parameters including voltage and current transfer matrices in a common mode, in which the winding wires are commonly connected to the input and output terminals, and in a differential mode, in which the winding wires are differentially connected to the input and output terminals, and calculating impedance parameters in a mixed mode, in which transfer impedance components for the shaft ends in the common mode and the differential mode are mixed, using the extracted input impedance parameters and conversion parameters.

Apparatus and method for extracting impedance parameters of three-phase motor

The present disclosure provides a resolver including a stator core, an insulation cover for covering and insulating the stator core, an upper protection cover coupled to an upper portion of the insulation cover to cover and protect upper portions of coils wound around the stator core, a lower protection cover coupled to a lower portion of the insulation cover to cover and protect lower portions of the coils, a hook configured to extend from the upper protection cover in the downward direction, and a hook-catching portion formed at the insulation cover such that the lower end portion of the hook is hooked thereon in the upward direction.

Resolver

Disclosed herein is a rotor permanent magnet apparatus for a drive motor based on temperature distribution. The permanent magnet may enhance coercivity without a substantial decrease in magnetic flux density Br by applying a grain boundary diffusion process of diffusing dysprosium on the surface of the permanent magnet based on the temperature distribution of the permanent magnet.

Rotor permanent magnet apparatus for drive motor based on temperature distribution

An interior permanent magnet synchronous motor is provided. In the motor, a V-type recess is provided between adjacent permanent magnets within an outer surface of a rotor. The angle of the V-type recess ranges from 103&#xb0; to 107&#xb0;.

Interior permanent magnet synchronous motor

Growing community of inventors

Seoul, South Korea

Hyoung Jun Cho